package com.sky.service.impl;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.github.xiaoymin.knife4j.core.util.CollectionUtils;
import com.sky.constant.MessageConstant;
import com.sky.context.BaseContext;
import com.sky.dto.*;
import com.sky.entity.*;
import com.sky.exception.AddressBookBusinessException;
import com.sky.exception.OrderBusinessException;
import com.sky.mapper.*;
import com.sky.result.PageResult;
import com.sky.service.OrderService;
import com.sky.utils.HttpClientUtil;
import com.sky.utils.WeChatPayUtil;
import com.sky.vo.OrderPaymentVO;
import com.sky.vo.OrderStatisticsVO;
import com.sky.vo.OrderSubmitVO;
import com.sky.vo.OrderVO;
import com.sky.websocket.WebSocketServer;
import io.swagger.models.auth.In;

import lombok.extern.slf4j.Slf4j;
import org.aspectj.weaver.ast.Or;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

@Slf4j
@Service
public class OrderServiceImpl implements OrderService {

    @Value("${sky.shop.address}")
    private String shopAddress;

    @Value("${sky.baidu.ak}")
    private String ak;
    @Autowired
    private OrderMapper orderMapper;
    @Autowired
    private OrderDetailMapper orderDetailMapper;
    @Autowired
    private AddressBookMapper addressBookMapper;
    @Autowired
    private ShoppingCartMapper shoppingCartMapper;
    @Autowired
    private WeChatPayUtil weChatPayUtil;
    @Autowired
    private UserMapper userMapper;
    @Autowired
    private WebSocketServer webSocketServer;
    @Autowired
    private OrderService orderService;
    /**
     * 各个状态的订单数量统计
     * @return
     */
    @Override
    public OrderStatisticsVO statistic() {

        /*Long userId=BaseContext.getCurrentId();
        OrderStatisticsVO orderStatisticsVO=new OrderStatisticsVO();
        List<Orders> ordersList=orderMapper.list(userId);
        for (Orders order:ordersList) {
            if(order.getStatus()==2)
            {
                orderStatisticsVO.setToBeConfirmed(orderStatisticsVO.getToBeConfirmed()+1);
            }
            if(order.getStatus()==4)
            {
                orderStatisticsVO.setDeliveryInProgress(orderStatisticsVO.getDeliveryInProgress()+1);
            }
            if(order.getStatus()==3)
            {
                orderStatisticsVO.setConfirmed(orderStatisticsVO.getConfirmed()+1);
            }
        }*/
        //根据状态，分别查询出待接单，待派送，派送中的订单数量
        Integer toBeConfirmed=orderMapper.countStatus(Orders.TO_BE_CONFIRMED);
        Integer confirmed=orderMapper.countStatus(Orders.CONFIRMED);
        Integer deliveryInProgress=orderMapper.countStatus(Orders.DELIVERY_IN_PROGRESS);
        //将查询出的数据封装到orderStatisticsVO中响应
        OrderStatisticsVO orderStatisticsVO=new OrderStatisticsVO();
        orderStatisticsVO.setToBeConfirmed(toBeConfirmed);
        orderStatisticsVO.setConfirmed(confirmed);
        orderStatisticsVO.setDeliveryInProgress(deliveryInProgress);


        return orderStatisticsVO;
    }

    /**
     * 用户下单
     * @param ordersSubmitDTO
     * @return
     */
    @Override
    public OrderSubmitVO submitOrder(OrdersSubmitDTO ordersSubmitDTO) {
        //处理业务异常(地址簿为空、购物车数据为空)
        AddressBook addressBook =addressBookMapper.getById(ordersSubmitDTO.getAddressBookId());
        if(addressBook==null){
            //抛出业务异常
            throw new AddressBookBusinessException(MessageConstant.ADDRESS_BOOK_IS_NULL);
        }
        Long userId= BaseContext.getCurrentId();
        ShoppingCart shoppingCart=new ShoppingCart();
        shoppingCart.setUserId(userId);
        List<ShoppingCart> shoppingCartList=shoppingCartMapper.list(shoppingCart);
        if(shoppingCartList.size()==0||shoppingCartList==null){
            throw new AddressBookBusinessException(MessageConstant.SHOPPING_CART_IS_NULL);
        }
        //向订单表插入一条数据
        Orders orders=new Orders();
        BeanUtils.copyProperties(ordersSubmitDTO,orders);
        orders.setOrderTime(LocalDateTime.now());
        orders.setPayStatus(Orders.UN_PAID);
        orders.setStatus(Orders.PENDING_PAYMENT);
        orders.setNumber(String.valueOf(System.currentTimeMillis()));
        orders.setPhone(addressBook.getPhone());
        orders.setConsignee(addressBook.getConsignee());
        orders.setUserId(userId);

        orderMapper.insert(orders);
        List<OrderDetail> orderDetailList=new ArrayList<>();
        //向订单明细表插入n条数据
        for(ShoppingCart cart:shoppingCartList){
            OrderDetail orderDetail=new OrderDetail();//订单明细
            BeanUtils.copyProperties(cart,orderDetail);
            orderDetail.setOrderId(orders.getId());//设置当前订单明细关联的订单id
            orderDetailList.add(orderDetail);
        }
        orderDetailMapper.insertBatch(orderDetailList);
        //清空用户购物车数据
        shoppingCartMapper.deleteByUserId(userId);
        //封装VO返回结果
        OrderSubmitVO orderSubmitVO=OrderSubmitVO.builder()
                .id(orders.getId())
                .orderTime(orders.getOrderTime())
                .orderNumber(orders.getNumber())
                .orderAmount(orders.getAmount())
                .build();
        return orderSubmitVO;
    }
    /**
     * 订单支付
     *
     * @param ordersPaymentDTO
     * @return
     */
    public OrderPaymentVO payment(OrdersPaymentDTO ordersPaymentDTO) throws Exception {
        // 当前登录用户id
        Long userId = BaseContext.getCurrentId();
        User user = userMapper.getById(userId);

        /*//调用微信支付接口，生成预支付交易单
        JSONObject jsonObject = weChatPayUtil.pay(
                ordersPaymentDTO.getOrderNumber(), //商户订单号
                new BigDecimal(0.01), //支付金额，单位 元
                "苍穹外卖订单", //商品描述
                user.getOpenid() //微信用户的openid
        );

        if (jsonObject.getString("code") != null && jsonObject.getString("code").equals("ORDERPAID")) {
            throw new OrderBusinessException("该订单已支付");
        }*/
        JSONObject jsonObject =new JSONObject();
        jsonObject.put("code","ORDERPAID");
        OrderPaymentVO vo=jsonObject.toJavaObject(OrderPaymentVO.class);
        vo.setPackageStr(jsonObject.getString("package"));
        //为替代微信支付成功后的数据库订单状态更新，多定义一个方法进行修改
        Integer OrderPaidStatus=Orders.PAID;//支付状态，已支付
        Integer OrderStatus=Orders.TO_BE_CONFIRMED;//订单状态，待接单
        //发现没有将支付时间check_out属性赋值，所以在这里更新
        LocalDateTime check_out_time=LocalDateTime.now();

        //获取订单号码
        String orderNumber=ordersPaymentDTO.getOrderNumber();
        log.info("调用updateStatus,用于替换微信支付更新数据库状态的问题");
        orderMapper.updateStatus(OrderStatus,OrderPaidStatus,check_out_time,orderNumber);
        orderService.paySuccess(orderNumber);


        return vo;
    }

    /**
     * 支付成功，修改订单状态
     *
     * @param outTradeNo
     */
    public void paySuccess(String outTradeNo) {

        // 根据订单号查询订单
        Orders ordersDB = orderMapper.getByNumber(outTradeNo);

        // 根据订单id更新订单的状态、支付方式、支付状态、结账时间
        Orders orders = Orders.builder()
                .id(ordersDB.getId())
                .status(Orders.TO_BE_CONFIRMED)
                .payStatus(Orders.PAID)
                .checkoutTime(LocalDateTime.now())
                .build();

        orderMapper.update(orders);

        //通过websocket向客户端浏览器推送消息 type orderId content
        Map map=new HashMap();
        map.put("type",1);//1表示来单提醒
        map.put("orderId",ordersDB.getId());
        map.put("content","订单号:"+outTradeNo);
        String json=JSON.toJSONString(map);
        webSocketServer.sendToAllClient(json);
    }

    /**
     * 历史订单查询
     * @param pageNum
     * @param pageSize
     * @param status
     * @return
     */
    @Override
    public PageResult pageQuery4User(int pageNum, int pageSize, Integer status) {
        //设置分页
        PageHelper.startPage(pageNum, pageSize);


        OrdersPageQueryDTO ordersPageQueryDTO = new OrdersPageQueryDTO();
        ordersPageQueryDTO.setUserId(BaseContext.getCurrentId());
        ordersPageQueryDTO.setStatus(status);

        //分页条件查询
        Page<Orders> page = orderMapper.pageQuery(ordersPageQueryDTO);

        List<OrderVO> list=new ArrayList<>();

        //查询出订单明细，并封装入OrderVO进行响应
        if(page!=null && page.getTotal()>0){
            for (Orders orders : page){
                Long orderId = orders.getId();

                //查询订单明细
                List<OrderDetail> orderDetails=orderDetailMapper.getByOrderId(orderId);

                OrderVO orderVO=new OrderVO();
                BeanUtils.copyProperties(orders,orderVO);
                orderVO.setOrderDetailList(orderDetails);
                list.add(orderVO);
            }
        }
        return new PageResult(page.getTotal(), list);
    }

    /**
     * 取消订单
     * @param id
     */
    @Override
    public void cancelOrder(Long id)throws Exception {
        //根据id查询订单
        Orders ordersDB=orderMapper.getById(id);
        //检验订单是否存在
        if(ordersDB==null){
            throw new OrderBusinessException(MessageConstant.ORDER_NOT_FOUND);
        }
        //订单状态
        if(ordersDB.getStatus()>2){
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }

        Orders orders=new Orders();
        orders.setId(id);
        //订单处于待接单状态下取消，需要进行退款
        if(ordersDB.getStatus().equals(Orders.TO_BE_CONFIRMED)){
            //调用微信支付退款接口
            weChatPayUtil.refund(
                    ordersDB.getNumber(),//商户订单号
                    ordersDB.getNumber(),//商户退款单号
                    new BigDecimal(0.01),//退款金额
                    new BigDecimal(0.01));//原订单金额
                    //支付状态修改为  退款
                    orders.setPayStatus(Orders.REFUND);
        }
        //更新订单状态、取消原因、取消时间
        orders.setStatus(Orders.CANCELLED);
        orders.setCancelReason("用户取消");
        orders.setCancelTime(LocalDateTime.now());
        orderMapper.update(orders);
        }

    /**
     * 再来一单
     * @param id
     */
    @Override
    public void repetition(Long id) {
        //查询当前用户id
        Long userId = BaseContext.getCurrentId();
        //根据订单id查询当前订单详情
        List<OrderDetail> orderDetailList=orderDetailMapper.getByOrderId(id);

        //将订单详情对象转换为购物车对象
        List<ShoppingCart> shoppingCartList=orderDetailList.stream().map(x->{
            ShoppingCart shoppingCart=new ShoppingCart();
            //将原订单详情里面的菜品信息重新复制到购物车对象中
            BeanUtils.copyProperties(x,shoppingCart);
            shoppingCart.setUserId(userId);
            shoppingCart.setCreateTime(LocalDateTime.now());
            return shoppingCart;
        }).collect(Collectors.toList());
        //将购物车对象添加到数据库
        shoppingCartMapper.insertBatch(shoppingCartList);
    }

    /**
     * 查询订单详情
     * @param id
     * @return
     */
    @Override
    public OrderVO details(Long id) {
        //根据id查询订单
        Orders orders = orderMapper.getById(id);

        //查询该订单对应的菜品明细
        List<OrderDetail> orderDetailList = orderDetailMapper.getByOrderId(id);

        //将该订单及其详情封装到OrderVO并返回
        OrderVO orderVO = new OrderVO();
        BeanUtils.copyProperties(orders,orderVO);
        orderVO.setOrderDetailList(orderDetailList);
        return orderVO;
    }


    /**
     * 订单搜索
     * @return
     */
    @Override
    public PageResult conditionSearch(OrdersPageQueryDTO ordersPageQueryDTO) {
        PageHelper.startPage(ordersPageQueryDTO.getPage(), ordersPageQueryDTO.getPageSize());

        Page<Orders> page = orderMapper.pageQuery(ordersPageQueryDTO);

        // 部分订单状态，需要额外返回订单菜品信息，将Orders转化为OrderVO
        List<OrderVO> orderVOList = getOrderVOList(page);

        return new PageResult(page.getTotal(), orderVOList);
    }

    /**
     * 接单
     * @param ordersConfirmDTO
     */
    @Override
    public void confirm(OrdersConfirmDTO ordersConfirmDTO) {
        Orders orders = Orders.builder()
                .id(ordersConfirmDTO.getId())
                .status(Orders.CONFIRMED)
                .build();
        orderMapper.update(orders);
    }

    /**
     * 拒单
     * @param ordersRejectionDTO
     */
    @Override
    public void rejection(OrdersRejectionDTO ordersRejectionDTO) throws Exception {
        Orders ordersDB=orderMapper.getById(ordersRejectionDTO.getId());
        //订单只有存在且为状态2（待接单）才可以拒单
        if(ordersDB==null || !ordersDB.getStatus().equals(Orders.TO_BE_CONFIRMED)){
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        //由于缺少营业执照，涉及退款的代码暂不运行
        /*//支付状态
        Integer payStatus=ordersDB.getPayStatus();
        if(payStatus==Orders.PAID)
        {
            //用户已支付，需要退款
            String refund=weChatPayUtil.refund(
                    ordersDB.getNumber(),
                    ordersDB.getNumber(),
                    new BigDecimal(0.01),
                    new BigDecimal(0.01)
            );
          log.info("申请退款:{}",refund);
        }*/

        //拒单需要退款，根据订单id更新订单状态，拒单原因，取消时间
        Orders orders=new Orders();
        orders.setId(ordersDB.getId());
        orders.setStatus(Orders.CANCELLED);
        orders.setRejectionReason(ordersRejectionDTO.getRejectionReason());
        orders.setCancelTime(LocalDateTime.now());
        orderMapper.update(orders);
    }

    /**
     * 商家取消订单
     * @param ordersCancelDTO
     */
    @Override
    public void cancel(OrdersCancelDTO ordersCancelDTO)throws Exception {
        Orders ordersDB=orderMapper.getById(ordersCancelDTO.getId());
        //订单只有存在且为状态3（已接单）才可以取消订单
        if(ordersDB==null || !ordersDB.getStatus().equals(Orders.CONFIRMED)){
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        //由于缺少营业执照，涉及退款的代码暂不运行
       /* //支付状态
        Integer payStatus=ordersDB.getPayStatus();
        if(payStatus==Orders.PAID)
        {
            //用户已支付，需要退款
            String refund=weChatPayUtil.refund(
                    ordersDB.getNumber(),
                    ordersDB.getNumber(),
                    new BigDecimal(0.01),
                    new BigDecimal(0.01)
            );
            log.info("申请退款:{}",refund);
        }*/
        //管理端取消订单需要退款，根据订单id更新订单状态，取消原因，取消时间
        Orders orders=new Orders();
        orders.setId(ordersCancelDTO.getId());
        orders.setStatus(Orders.CANCELLED);
        orders.setCancelReason(ordersCancelDTO.getCancelReason());
        orders.setCancelTime(LocalDateTime.now());
        orderMapper.update(orders);
    }

    /**
     * 派送订单
     * @param id
     */
    @Override
    public void delivery(Long id) {
        Orders ordersDB=orderMapper.getById(id);
        //订单只有存在且为状态3（已接单）才可以派送
        if(ordersDB==null || !ordersDB.getStatus().equals(Orders.CONFIRMED)){
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        //更新订单状态
        Orders orders=new Orders();
        orders.setId(ordersDB.getId());
        orders.setStatus(Orders.DELIVERY_IN_PROGRESS);

        orderMapper.update(orders);
    }

    /**
     * 完成订单
     * @param id
     */
    @Override
    public void complete(Long id) {
        Orders ordersDB=orderMapper.getById(id);
        //订单只有存在且为状态4（派送中）才可以完成
        if(ordersDB==null|| !ordersDB.getStatus().equals(Orders.DELIVERY_IN_PROGRESS)){
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        //更新订单状态
        Orders orders=new Orders();
        orders.setId(ordersDB.getId());
        orders.setStatus(Orders.COMPLETED);
        orders.setDeliveryTime(LocalDateTime.now());
        orderMapper.update(orders);

    }

    /**
     * 客户催单
     * @param id
     */
    @Override
    public void reminder(Long id) {
        Orders ordersDB=orderMapper.getById(id);
        if(ordersDB==null){
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        Map map=new HashMap();
        map.put("type",2);
        map.put("orderId",id);
        map.put("content","订单号:"+ordersDB.getNumber());
        String json=JSON.toJSONString(map);
        webSocketServer.sendToAllClient(json);

    }

    public List<OrderVO> getOrderVOList(Page<Orders> page){
        //需要返回订单菜品信息，自定义OrderVO响应结果
        List<OrderVO> orderVOList=new ArrayList<>();

        List<Orders> ordersList=page.getResult();
        if(!CollectionUtils.isEmpty(ordersList)){
            for(Orders orders:ordersList){
                //将共同字段复制到OrderVO
                OrderVO orderVO=new OrderVO();
                BeanUtils.copyProperties(orders,orderVO);
                String orderDishes=getOrderDishesStr(orders);
                //将订单信息封装到orderVO中，并添加到orderVOList
                orderVO.setOrderDishes(orderDishes);


                orderVOList.add(orderVO);
            }
        }
        return orderVOList;
    }


    public String getOrderDishesStr(Orders orders){
        //查询订单菜品详细信息
        List<OrderDetail> orderDetailList=orderDetailMapper.getByOrderId(orders.getId());
        //将每一条订单菜品信息拼接为字符串
        List<String> orderDishList=orderDetailList.stream().map(x->{
            String orderDish= x.getName()+"*"+x.getNumber()+",";
            return orderDish;
        }).collect(Collectors.toList());
        //将该订单对应的所有菜品信息拼接到一起
        return String.join(",",orderDishList);
    }
    /**
     * 检查客户的收货地址是否超出配送范围
     * @param address
     */
    private void checkOutOfRange(String address) {
        Map map = new HashMap();
        map.put("address",shopAddress);
        map.put("output","json");
        map.put("ak",ak);

        //获取店铺的经纬度坐标
        String shopCoordinate = HttpClientUtil.doGet("https://api.map.baidu.com/geocoding/v3", map);

        JSONObject jsonObject = JSON.parseObject(shopCoordinate);
        if(!jsonObject.getString("status").equals("0")){
            throw new OrderBusinessException("店铺地址解析失败");
        }

        //数据解析
        JSONObject location = jsonObject.getJSONObject("result").getJSONObject("location");
        String lat = location.getString("lat");
        String lng = location.getString("lng");
        //店铺经纬度坐标
        String shopLngLat = lat + "," + lng;

        map.put("address",address);
        //获取用户收货地址的经纬度坐标
        String userCoordinate = HttpClientUtil.doGet("https://api.map.baidu.com/geocoding/v3", map);

        jsonObject = JSON.parseObject(userCoordinate);
        if(!jsonObject.getString("status").equals("0")){
            throw new OrderBusinessException("收货地址解析失败");
        }

        //数据解析
        location = jsonObject.getJSONObject("result").getJSONObject("location");
        lat = location.getString("lat");
        lng = location.getString("lng");
        //用户收货地址经纬度坐标
        String userLngLat = lat + "," + lng;

        map.put("origin",shopLngLat);
        map.put("destination",userLngLat);
        map.put("steps_info","0");

        //路线规划
        String json = HttpClientUtil.doGet("https://api.map.baidu.com/directionlite/v1/driving", map);

        jsonObject = JSON.parseObject(json);
        if(!jsonObject.getString("status").equals("0")){
            throw new OrderBusinessException("配送路线规划失败");
        }

        //数据解析
        JSONObject result = jsonObject.getJSONObject("result");
        JSONArray jsonArray = (JSONArray) result.get("routes");
        Integer distance = (Integer) ((JSONObject) jsonArray.get(0)).get("distance");

        if(distance > 5000){
            //配送距离超过5000米
            throw new OrderBusinessException("超出配送范围");
        }
    }

}



